oracle开机自启动、监听自启动设置

1、root用户下修改/etc/oratab文件:将ora9idb:/u01/app/oracle/product/9.2.0/db_1:N改为ora9idb:/u01/app/oracle/product/9.2.0/db_1:Y

ora9idb:/u01/app/oracle/product/9.2.0/db_1:Y

2、oracle用户下执行dbstart(执行之前最好先将数据库shutdown immediate)

执行dbstart启动数据库数据库可能无法启动，报告Can’t find init file …的错误，如果没有报错，直接启动成功也有可能(oracle 高版本11g是这样的，10g还没有实验;9i肯定会失败).

解决办法:

需要复制一个初始化文件:  cp /opt/oracle/admin/gedb/pfile/init.ora.* /opt/oracle/product/9.2.0/dbs/initgedb.ora(具体要看环境变量设置)

实际上就是在执行:cp $ORACLE_BASE/admin/$ORACLE_SID/pfile/init.ora.*  $ORACLE_HOME/dbs/init$ORACLE_SID.ora.

cp完成后，再次执行dbstart就可以了.

3、截止到第2步骤，是在手工操作启动数据库.假如需要在操作系统时，自动启动数据库监听及数据库，还需要做一点操作:

root身份登陆,在/etc/rc.d/rc.local文件末尾添加两行命令即可:

su - oracle -c "lsnrctl start"
su - oracle -c "dbstart"

然后，reboot你的os，测试一下是否启动成功!

dbstart无法启动

执行dbstart时报错

gtone-> dbstart  
ORACLE_HOME_LISTNER is not SET, unable to auto-start Oracle Net Listener
Usage: /u01/app/oracle/product/11.2.0/db_1/bin/dbstart ORACLE_HOME
Processing Database instance "CQRCB": log file /u01/app/oracle/product/11.2.0/db_1/startup.log
gtone-> 

 解决办法

gtone-> cp /u01/app/oracle/product/11.2.0/db_1/bin/dbstart //u01/app/oracle/product/11.2.0/db_1/bin/dbstart.bak
gtone-> ll
total 20
-rw-r----- 1 oracle oinstall 16549 Jan  5 13:10 CreateDatabase-summary.html
gtone-> vi /u01/app/oracle/product/11.2.0/db_1/bin/dbstart
#!/bin/sh
#
# $Id: dbstart.sh /st_buildtools_11.2.0/1 2013/01/24 16:20:35 tmagana Exp $
# Copyright (c) 1991, 2013, Oracle and/or its affiliates. All rights reserved.
#

###################################
#
# usage: dbstart $ORACLE_HOME
#
# This script is used to start ORACLE from /etc/rc(.local).
# It should ONLY be executed as part of the system boot procedure.
#
# This script will start all databases listed in the oratab file
# whose third field is a "Y".  If the third field is set to "Y" and
# there is no ORACLE_SID for an entry (the first field is a *),
# then this script will ignore that entry.
#
# This script requires that ASM ORACLE_SID's start with a +, and
# that non-ASM instance ORACLE_SID's do not start with a +.
#
# If ASM instances are to be started with this script, it cannot
# be used inside an rc*.d directory, and should be invoked from
# rc.local only. Otherwise, the CSS service may not be available
# yet, and this script will block init from completing the boot
# cycle.
#
# If you want dbstart to auto-start a single-instance database that uses
# an ASM server that is auto-started by CRS (this is the default behavior
# for an ASM cluster), you must change the database's ORATAB entry to use
# a third field of "W" and the ASM's ORATAB entry to use a third field of "N".
# These values specify that dbstart auto-starts the database only after
# the ASM instance is up and running.
#
# Note:
# Use ORACLE_TRACE=T for tracing this script.
#
# The progress log for each instance bringup plus Error and Warning message[s]
# are logged in file $ORACLE_HOME/startup.log. The error messages related to
# instance bringup are also logged to syslog (system log module).
# The Listener log is located at $ORACLE_HOME_LISTNER/listener.log
#
# On all UNIX platforms except SOLARIS
# ORATAB=/etc/oratab
#
# To configure, update ORATAB with Instances that need to be started up
#    Entries are of the form:
#    $ORACLE_SID:$ORACLE_HOME:<N|Y|W>:
#    An example entry:
#    main:/usr/lib/oracle/emagent_10g:Y
#
# Overall algorithm:
# 1) Bring up all ASM instances with 'Y' entry in status field in oratab entry
# 2) Bring up all Database instances with 'Y' entry in status field in
#    oratab entry
# 3) If there are Database instances with 'W' entry in status field
#    then
#      iterate over all ASM instances (irrespective of 'Y' or 'N') AND
#      wait for all of them to be started
#    fi
# 4) Bring up all Database instances with 'W' entry in status field in
#    oratab entry
#
#####################################

LOGMSG="logger -puser.alert -s "

trap 'exit' 1 2 3

# for script tracing
case $ORACLE_TRACE in
  T) set -x ;;
esac

# Set path if path not set (if called from /etc/rc)
SAVE_PATH=/bin:/usr/bin:/etc:${PATH} ; export PATH
SAVE_LLP=$LD_LIBRARY_PATH

# First argument is used to bring up Oracle Net Listener
# ORACLE_HOME_LISTNER=$1
ORACLE_HOME_LISTNER=$ORACLE_HOME （将$1替换成$ORACLE_HOME）
if [ ! $ORACLE_HOME_LISTNER ] ; then
  echo "ORACLE_HOME_LISTNER is not SET, unable to auto-start Oracle Net Listener"
  echo "Usage: $0 ORACLE_HOME"
else
  LOG=$ORACLE_HOME_LISTNER/listener.log

  # Set the ORACLE_HOME for the Oracle Net Listener, it gets reset to
  # a different ORACLE_HOME for each entry in the oratab.
  ORACLE_HOME=$ORACLE_HOME_LISTNER ; export ORACLE_HOME                                                       

 再次验证dbstart命令

gtone-> dbstart
Processing Database instance "CQRCB": log file /u01/app/oracle/product/11.2.0/db_1/startup.log